By M. Luginbuhl, Extension Specialist in Goats and Forage Systems, North Carolina State UniversityAs winter feed supplies run low and with producers eager to turn livestock out to pasture this spring, do yourself and your stock a favor by scouting for poisonous plants in your pasture this spring.Factors contributing to plant poisoning are starvation, accidental eating, and browsing habits of animals. Starvation is the most common reason.